Method of making cooking tops or burner frames for gas ranges or the like



May 11,1926. 1584,119 H. MOECKER, JR.,'ET AL METHOD OF MAKING COOKING TOPS OR BURNER FRAMES FOR GAS RANGESOR THE LIKE Original Filed 1924 2 Sheets-Sheet l May 11 1926.

H. MOECKER, JR, ET AL METHOD OF MAKING cooxmq TOP-S OR 'BURNER'FRAMES FOR GAS RANGES OR THE} LIKE Original Filed ecv 18, 1924 2 Sheets-Sheet 2 inventors Patented May 11, I- I UNITED STATES 1,584,119 PATENT or fice.

HENRY nOEcxEn, .13., or nojmnwoon, Am) THEODORE rromrson, F HARVEY, ILLI- N018, As sIeNOEs To AMERICAN sTovE comranr, or sT. Louis, mssonnr, A con- POBATION or NEw'zERsEY.

METHOD on MAKING cooxme TOPS on Original application med becember This invention relates to im rovements in the method of making coo 'ng tops or burner; frames for gas ranges or the like, being more specifically a cooking top vof stamped steel in one piece so constructed that the maximumstrength and durability is obtained by the minimum cost of manufacture for av given weight ofmaterial;

This invention is an improvement over cooking tops or burner frames as heretofore 'madein channel form and V-slotted or notched at their corners. '.A frame such as referred to appears in the F. G. Nicolaus Patent No. 1,178,259 of April 1, 1916; In

frames of the Nicolaus type one or more pieces of channel iron are sometimes used and the corners when bent are either welded or the Vd or notched out portionsare sometimes left slightly apart or open. I

The object of the'present invention is to rovide a cooking top or frame stamped rom a single piece of material which is very rigid and unbreakable and at the same time produce a frame in which the vertical oints invention is the gas stoves or the like of a novel constructionwhich is pleasingin appearanceand'at the same time possesses strength and durability and is cheap and simple of manufacture. I

Other further objects, novel features of construction, and improved results will ap-.

pear from the following accompanying drawings. ,j

In the drawings: Figure 1 is a" erspective view of the stove frame or cook cation to a stove. I I 1 Figure 2 is a plan view of the blank from which the frame is made, the blank being shown prior to the bending operation.

description and Figure 3 is an enlarged detail perspective adjacent the corners of the frame are flush,

the.

ing top ready for applif BURNER Enmm FOR GAS RANGES on THE LIKE. v

1a, 1924; Serial No. 756,771." Divided 15, 1925.. Serial No. 37,167.

and thil -applichtion filed June I View of one corner of the frame showing themanner offorming the joint adjacent the frame corner.-

Fi re 4 is .a fragmentary enlar ed sectiona view taken on the line 44 0 Figure 3- 'looking in the direction indicated by arrow.

Figure 5 is an enlarged fragmentary sectional view 'of-the improved frame, the section being taken on the line 55 of Figure 3 looking in the direction indicated by arrow. I

4 Referring now to the drawings in which like parts-are designated by similar reference numerals'throughout the description it will be seen that the frame is composed of one continuous piece of material. It has 7 been found that steel is the preferable ma terial to use but it will bereadily under stood that if desired other materials could be substituted to suit an particular use to wilillgh the'principle of the invention is app e j I In the embodiment shownin the drawings and 8. hereinafter I described the frame is squarebut the principle of the invention can be a pliedto frames of other shapes 9 and for rames for uses other than upon gas ranges. I I

When the blank has been stamped out from the material to be used its form is as appears in Figure 2 of the drawihgs. L- shaped.notches are out in the-outer four corners ofthe frame blank, these notches leaving in the frame corners a short leg 10 and a longer leg 11.i The particular reason" for making one leg I the other will be given hereinafter.

The frame at its four inner corners is provided with semi-circular cut out rtions 12 which jointhe inner'perimeter o the frame in rounded. corners 1.3.

The four sides or. legs A, B,'C and Dzof the frame are made of a sufficient width so that in the completed frame formed as appears in Figure 1 of thedrawingseach of the legs can be bent to form a to 14, me

an outer wall 15 and an inner wall 16. B

forming the frame in this manner, it wil of the notch longer than 90 blank to the frame shape a series of holes 17 are made adjacent the outer perimeter of the frame blank and a series of holes 18 are formed adjacent the inner perimeter of the blank. The holes 17 are for the purpose of receiving bolts (not shown) for fastening the frame to the range body while the openings 18 are for the purpose of receiving bolts'or other suitable appliances (not shown) for supporting the gas burners 111 I the frame or cooking top.

In bending or forming the blank into the finished frame as itappears in Figure 1 of cut out portions at the outer corners of the" frame blank.

0 complete the outer wall it is necessary to bend the longer leg portion 11 of the notched corners around and into the plane of the adjacent frame leg outer wall. This extending. portion is designated in the drawings by a numeral 20 and will closely abut and lie flush with the outer frame wall. Due to the fact that the frame legs were bent downwardly adjacent their outer edge in a plane or line slightly inside of the apex of the notches the leg 11 does 'not reach the outer edge of the top 14 of the frame there being a space 21 between them.

By forming the frame in this manner the corners are perfectly smooth and are slightly rounded.

It will bealsorseen thatthe outer edge 22 and the inner edge 23 of the top 14 of the frame are also slightly rounded rather than presenting a sharp definite edge.

From the foregoing 1t will be seen tha the cooking top or frame is formed from a single piece of material and that in its completed form presents a frame which is pleasing in appearance as all of its edges and corners are slightly rounded and are smooth both as to appearance, and touch, Furthermore the meeting edges or ends of the outer side walls are smooth and are not positioned immediately at the corners of the frame. It will be further seen that the semi-circular cut out portions 12 at the inner corners ofthe frame spread out into a pleasing contour to the eye in the finished frame.

It will be readily understood that the forming or the bending of the frame can be done by machine. The stamping out of the blank can likewise-be done by machine as can also the drilling of the bolt holes 17 and 18. From this it will be seen that a frame made in accordance with this invention is cheap and simple of manufacture because of the machine work and additionally because there is no waste of material. Furthermore the frame possesses great strength and durability combined with a pleasing appearance.

By reason of folding or bending the inner and outer legs 15 and 16 of the frame on lines inside of the outer corner notches and the inner corner circular cut out portions a short or narrow wall portion 21 is formed adjacent the outer corners of the frame above the notches and the narrow inner wall portion 19 is formed at the inner corners of the frame. Due to these narrow wall portions it is possible to form the inner and outer corners of the frame without any puckering of the material which would present a rough and uneven surfaces; This feature of the construction of the frame is important for otherwise puckering would occur WhlCll would-detract from the frame as will be 1. The method of making a frame, comprising stamping the frame in one piece from a sheet of material, forming angular notched portions at the outer corners of the frame, forming circular cut out portions at the inner corners of the frame,

bending the edges of the frame downwardly in a line inside of the notched corners, bend ing the inner edges of the frame downward on a line inside of the circular cut out pertions, whereby the inner corners of the frame are rounded and the walls of each notched portion at the outer corners of the frame abutand a frame is formed which is substantially U-shaped in cross section, 2. The methodof making a frame, comprising stamping the frame in one piece from a sheet of material, forming angular notched portions at the outer corners of the frame, forming semi-circular cut out portions at the inner corners of the frame, bending the outer edge of the frame downwardly on a line slightly inside of the notched corner portions, and bending the inner edge of the frame downwardly on a line slightly inside of the circular cut out portions, whereby the vertical walls at the inner and outer corners of the frame are.

short, and whereby the inner and outer corners of the frame can be formed withone edge of said notches longer than the" other, and bending the longer edge of the notched portion, around the-corner of the frame to ahut'the Shorter side of the notch, whereby the abutting edges of the notched portions are-' adjacent the corners of the frame and lie in the same plane to form a flush smooth corner.

4. The method of making a frame comprising cutting the frame in one piece with an open center from a sheet of material, forming angular notched portions at the exterior corners of the frame, forming semicircular cut out portions at the interiorcorners of the frame, and bending the inner and outer edges of the frame downwardly on lines'within the said interior and exterior out out portions.

5. The method of making a frame, comprising cutting the frame in one piece with an open center from a sheet of material, forming angular notched portions at the outer corners of the frame with one side i, of the notches of a greater length than the other, forming circular cut out portions at the inner corners of the frame, bending the inner and outer edges of the frame downwardly on lines lying inside the inner and outer corner notches to form inner and outer le s for the frame, and bending the longer edge of the angular notched portions around the outer corners of the frame to abut the shorter edges of the notched out portions, whereby the joining edges of the angular notched portions are adjacent the outer corners of the frame, and the inner corners of the frame are rounded.

In testimony whereof, we hereunto aflix our signatures.

HENRY MOEOKER, JR, THEODORE THOMPSON. 

